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NEET2020BotanyTransport in PlantsActual

Select the incorrect statement.

Options

  1. ATransport of molecules in phloem can be bidirectional.
  2. BMovement of minerals in xylem is unidirectional.
  3. CUnloading of sucrose at sink does not involve the utilization of ATP .
  4. DElements most easily mobilized in plants from one region to another are phosphorus, sulphur, nitrogen and pota

Correct answer

C. Unloading of sucrose at sink does not involve the utilization of ATP .

Step-by-step solution

The long-distance movement of organic substances from the source or storage end (region of manufacture or leaf) to the region of utilization or sink. The sink and source can be reversed depending on the need of the plant or the seasonal changes. Sugar mainly in form of sucrose that is stored in roots is mobilized to become a source of food in the early spring when the buds act as sink and require energy in form of ATP for their unloading. Since the source-sink relationship is highly variable, the direction of movem

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